public abstract class GeneralFilterFunction extends ExtensionFunctionDefinition
| Modifier and Type | Class and Description |
|---|---|
static class |
GeneralFilterFunction.GeneralFilterFunctionCall |
| Constructor and Description |
|---|
GeneralFilterFunction() |
| Modifier and Type | Method and Description |
|---|---|
SequenceType[] |
getArgumentTypes()
Get the required types for the arguments of this function, counting from zero
|
int |
getMaximumNumberOfArguments()
Get the maximum number of arguments allowed by the function
|
int |
getMinimumNumberOfArguments()
Get the minimum number of arguments required by the function
|
SequenceType |
getResultType(SequenceType[] suppliedArgumentTypes)
Get the type of the result of the function
|
dependsOnFocus, getFunctionQName, hasSideEffects, makeCallExpression, trustResultTypepublic int getMinimumNumberOfArguments()
getMinimumNumberOfArguments in class ExtensionFunctionDefinitionpublic int getMaximumNumberOfArguments()
getMaximumNumberOfArguments in class ExtensionFunctionDefinitionpublic SequenceType[] getArgumentTypes()
getArgumentTypes in class ExtensionFunctionDefinitiongetMaximumNumberOfArguments(); however for functions
that allow a variable number of arguments, the array can be smaller than this, with the last
entry in the array providing the required type for all the remaining arguments.public SequenceType getResultType(SequenceType[] suppliedArgumentTypes)
getResultType in class ExtensionFunctionDefinitionsuppliedArgumentTypes - the static types of the arguments to the function.
This is provided so that a more precise result type can be returned in the common
case where the type of the result depends on the type of the first argument. The value
will be null if the function call has no arguments.Copyright (c) 2004-2013 Saxonica Limited. All rights reserved.